One cause of the outbreak of World War I was caused by

a the break out o the Russian revolution
b rising tensions among European powers
c the killing of Serbian national
d the invasion by Germany of Belgium

7 answers

my anser is b
rising tensions am...
a
c
b
I agree -- but there's another answer that is more specific.
Is it c?
yes ur right it is B
A
C
B
C is the best answer. It was the immediate cause of the outbreak of World War I.
IT IS
A
C
B